Grasshopper + Google voice + Obitalk + Cisco IP phone

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872368:
Hello.
I am starting a company and thinking about communications.
- Every member of our team has their own GV number + Obitalk (probably Obi200 will be enough, if there is no different in performance).
- Also, we got 800 number from Grasshopper.

I need to set up every Cisco IP phone for two accounts: GV and Grasshopper.
- As I understand I can use Obi200 as proxy, right? If it supports 4 accounts, I can connect two Cisco IP phones to one single Obi200 for two different GV accounts, correct?
- For Grasshopper I need a regular physical phone number. I will get FIOS phone number and connect it to OBiLINE. Will this OBiLINE work with Cisco? Would I be able to use one single Obi200 as proxy for two GV accounts and one OBiLINE inbound calls at the same time?
- What other services can I use to connect Cisco directly to Grasshopper? Unfortunately, GV is not an acceptable solution, since I can't disable Voicemail for Google hangout.
- Can I use Obi100 as SIP proxy? I was reading the instruction, but I was not able to find X_Proxy parameter in Obi100.
- Would I be able to use Cisco 8841 IP Phone as a SIP device, or only something like SPA525G2. I am just confused about all these modifications and models.
- Would I be able to connect two different SIP devices to one single Obi proxy?

Thank you!

SteveInWA:
That's a really bad, and unnecessarily complex solution.  Google Voice is designed and intended for individual consumer use.  There is no customer support whatsoever, with the volunteer-staffed Google Voice help forum being your only avenue for help.  Furthermore, certain calling patterns may trigger Google's anti-abuse algorithms, identifying you as a robocaller or spammer, which can shut down the account(s).  Forwarding a toll-free number into a Google Voice number may or may not work reliably.

Instead, sign up with the cloud-based SIP VoIP service provider of your choice, where you can easily add/delete/move individual users and inbound DID numbers around, and take advantage of all the usual calling features.  If you already own a pile of Cisco IP phones, you can provision them directly with the service provider -- no OBi(s) needed.  Otherwise, the better choice would be to buy OBi IP phones.

872368:
You are right and I totally agree with you. But I think GV will work fine for us. We don't make 100 calls every day and for lats 6 years I did not have any problems with GV.

The only one question is how to connect cisco phones to GV.
1.Obitalk with SIP proxy settings.
+ supported by Google.
+ transferring calls to another obi device.
- one extra device between a phone and GV. Does it make any impact on delay?

2. Simon Telephonics.
+ almost direct connect to GV
- Not sure about the quality and how stable it is.

For 800 number, I think, I will go with Flowroute.

drgeoff:
You cannot use OB1x0 devices as SIP proxies.

872368:
I am going to use obi202. I also have obi100, but yes, I understood it does not work like that.

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